For heavens sake please never visit the Night Safari (atleast not with my mom / any mom in tow). It is mind numbingly boring with the star of the night being the water buffaloes. The animals are hardly visible and the tram ride is a waste of time (the walking trails are definitely better).
Most importantly if you have family visting (who have heard a lot about singapore incl. the fact that we are THE place to buy knee pain balm, umbrellas and sareers; not to mention that gold is supposedly bought by the kilo) and they want to see everything, then get the combined ticket to the Bird Park, the Zoo and the Night Safari all for S$35 per person.
My mom decided that singapore was supposed to be the meeca for cheap yet exquisite quality sareers. That she could buy all her colleagues branded watches for a song, and that gold would be $5 a gram (its closer to $35). Plus my mom wants to make full use of the weekend (cos I am working during the week).
I dont believe that I am saying this.. I am actually looking forward to the working week.